ARKive Images of Life on Earth gathering together the very best films and photographs of the world's species into one centralised digital library, to create a unique audio-visual record of life on Earth.

Biomedia Galleries The entire site is filled with spectacular photos. One don't section is the Micronaturalist Notebook! This photo essay features "observations anyone can make with a good compound microscope, some patience, and a desire to ask questions is one of many informative and inspiring sections of the site. Students may use images and text from this site in class reports, projects, and homework. As with all images, please respect copyright law and the work of others and read Biomedia Galleries clearly written permissions page.

Cal Photos collection includes 212,656 plant, animal and habitat images from the University of California, Berkeley e-library. Useage guidelines are provided with each image.

Pics4Learning is a collection of thousands of images that have been donated by students, teachers, and amateur photographers.

Wikimedia Commons makes available to all, public domain and freely-licensed educational media content (images, sound and video clips). Everyone is allowed to copy, use and modify any files here freely as long as the source and the authors are credited and as long as users release their copies/improvements under the same freedom to others.